I run a grey Graupner 15/8 three bladed prop on my 2000. 8000 to 9000 max is the ideal rpm band for this engine.

This is a very nice running engine. No more than 12% oil needed... a few percents of nitro can be added to improve idling, but are not really needed when you run a hot plug like the Enye #3.

It is heavy for its size (and big...), but it runs forever. I've had mine over 10 years, and it still runs like new.
It is also pretty economic on fuel with the standard carb.

One of the best engines I own...total satifaction...